Ultra high energy (UHE) neutrinos generated in distant cosmic accelerators provide us an opportunity to probe physics beyond the current paradigm. The potential of these neutrinos ranges from probing non-standard interactions up to Planck scale physics, see for e.g., [1]}, [2]}, [3]}, [4]}. The prominent source of UHE cosmic neutrons are high energy protons in cosmic rays, \(10^{10}\)  - \(10^{11}\)  GeV, which interact with photons to produce neutrinos in the chain, \(p \gamma \rightarrow \Delta ^+ \rightarrow \pi ^+ n\) , \(\pi ^+ \rightarrow \mu ^+ \nu _{\mu } \rightarrow e^+ \nu _e \nu _{\mu } \bar{\nu _{\mu }}\) . The energy of these neutrinos can lie in the range of \(10^4\)  - \(10^{10}\)  GeV depending upon the type of source which can be of galactic and well as extragalactic origin.
